JPS6034211A - Cable fixed-size cutter - Google Patents

Abstract

PURPOSE:To hold the tip of a cable protruded through a feed port with a clamp and feed the cable correctly to a desired length by arranging the linear travel section of a belt in parallel with the feed direction of the cable and fitting the clamp unit to the linear travel section. CONSTITUTION:A guide tube 4 serving as the feed port of a cable is fixed to a correction roller 3 at the tip of a frame 2. A travel guide 5 in parallel with the feed direction is installed on a bed 1 with legs 6, 6 in front of the frame 2, and a toothed pulley 11 is rotatably supported by a bracket 10 behind the travel guide 5. A travel body 13 is mounted on the travel guide 5 astride the linear travel section on the toothed belt 12, and a clamp unit 16 is fitted to it. After the clamp unit 16 travels and feeds the cable (a) through the guide tube 4 by a fixed length, the cable (a) is cut by a cutter 28, then it is released from the clamp 16 and transported.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for sequentially cutting electric wires drawn out from a long coil into lengths according to the intended use.

Conventionally, in devices that sequentially cut long electric wires into lengths according to the intended use, the wires are held between a pair of feed rollers and the number of rotations of the feed rollers is controlled to determine the length of the wire to be fed out before cutting. Therefore, it is unavoidable that errors in the feed length will occur due to backlash in the feed roller drive mechanism and slippage between the feed roller and the electric wire, and short ones will become unusable, so the error will be compensated for. It was necessary to cut the wire into long lengths, which resulted in wasted electrical wire.

It is an object of the present invention to eliminate such drawbacks and provide a device that can accurately cut electric wires to desired lengths.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

On a frame 2 erected at one end of a horizontal bed 1, a straightening roller 3 consisting of two roller rows each corresponding to the vertical direction and the horizontal direction is installed, and an electric wire is attached to the tip of the frame 2. A guide tube 4, which serves as a feeding opening, is fixed on an extension of the correction roller 3.

A long electric wire a, which is wound into a coil and placed on a turntable b installed at the rear of the frame 2, is connected to a correction roller 3.
While passing through the guide tube 4, it is straightened and fed forward from the guide tube 4.

In front of the frame 2, slightly to the side of the path of the wire being fed out from the guide tube 4, a running guide 5 parallel to the feeding direction is horizontally installed on the bed 1'' by legs 6.6. A pulse motor 8 is mounted horizontally on a bracket 7 erected on the bed 1 , and a toothed pulley 9 is fixed to its output shaft. A toothed pulley 11 is rotatably supported by the bracket 10, and an endless toothed belt 12 is provided with teeth meshing with the front and rear toothed pulleys 9 and 11.
The two lower linear running parts run along both the upper and lower sides of the running guide 5. On two surfaces of the traveling guide 5, a traveling body 13 supported by a plurality of axles 14 that rotates on its upper surface, both side surfaces, and a lower surface runs astride the linear traveling portion above the toothed belt 12. A clamping device 16 is attached to the arm 15 placed on the arm 15 and projecting laterally from the upper surface of the arm 15 at a position corresponding to the feeding path of the electric wire a. An upward gripping piece 1 is attached to the tip of the main body 17 that is elongated in the direction.
The gripping piece 18 is attached to the tip of a lever 19 formed with a number 8 and supported by a shaft 21 near the tip of the main body 17 so as to be freely swingable.
A downward gripping piece 20 corresponding to the lever 19 is supported so as to be able to swing freely due to its own weight, and the tip of the piston rod 24 of the air cylinder 22 that is supported to be able to swing freely by a shaft 23 at the rear end of the main body 17 is attached to the lever 19. It has a structure in which the rear end is connected by a shaft 25.

A stand 26 is erected on the bed 1 immediately in front of the frame 2, and a cutter 28 consisting of a pair of left and right cutting blades is supported by an elevating body 27 that moves up and down along a sliding guide on the front surface of the stand 26 so as to be able to open and close freely. At the same time, the piston rod 30 of the air cylinder 29 attached to the lower surface of the bed 1 in two directions is connected to the elevating body 27, and as the piston rod 30 extends, the cutter 28 rises together with the elevating body 27 in an open state. When the cutter 28 reaches the feeding path of the electric wire a, it closes to cut the electric wire a, and the cutter 28 opens and retreats downward as the piston rod 30 contracts.

Next, to explain the operation of this embodiment, the cutter 28 is
As shown by the solid line in the figure, in the downwardly retracted state,
The running body 13 runs toward the frame 2 side by circulating the toothed belt 12 driven by the pulse motor 8,
As shown by the chain line in the figure, the travel guide 5 stops near the rear end, and the lever 19 rotates counterclockwise in FIG. The tip of the electric wire a protruding from the guide tube 4 is grasped between the upper and lower grasping pieces 20.18, and the pulse motor 8 is
The clamp 16 runs in the opposite direction together with the toothed belt 12 due to the reversal of the electric wire a, and after the electric wire a is fed out for a certain length through the guide tube 4, the pulse motor 8 rotates a number of times corresponding to a predetermined number of input pulses and then stops. As a result, the cutter 28 stops at the position shown by the solid line in Figure 1, and the cutter 28 rises and closes to cut the electric wire a, as shown by the chain line in the figure, and then opens and retreats downward, cutting the cut electric wire a. When the piston rod 24 of the air cylinder 22 contracts, the upper and lower gripping pieces 20.18 open and are released from the clamp 16, and are transported to the next process by a transport device (not shown). By repeating this process, the electric wire a fed out from the guide tube 4 is sequentially cut to a desired length.

As specifically explained in the above embodiments, the electric wire sizing cutting device of the present invention has a linear running portion of a toothed belt that is hung on a toothed pulley driven by a pulse motor in front of the wire outlet. is arranged parallel to the direction in which the electric wire is fed out, and a clamping device for gripping the end of the electric wire is connected to the straight running part, and a cutter for cutting the electric wire is placed outside the feeding path of the electric wire just before the feeding opening. The main feature is that the drive source is a pulse motor that can accurately control the number of rotations depending on the number of input pulses, and the drive force is applied to a toothed pulley that meshes with each other to prevent slippage. Since the transmission is transmitted to the clamp using a toothed belt, the tip of the wire protruding from the feeding opening can be gripped by the clamp and run, allowing the wire to be accurately fed out to the desired length and cut. be effective.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is a partially cutaway side view thereof. 4: Guide tube (feeding port) 5: Running guide 8: Pulse motor 9.11: Toothed pulley 12: Toothed belt 13: Running body 16: Clamp 18.20: Gripping piece 22: Air cylinder 28: Cutter 29: Air cylinder a: Electric wire applicant CKD Co., Ltd. Applicant Sumitomo Electric Industries Co., Ltd. Applicant Tokai Electric Cable Co., Ltd. Agent Patent attorney Hiroshi Noguchi 7- -4- JP-A-Sho GO-34211 (4) Continuation of page 1 0 Inventor Satoshi Okunishi Shimaya Osaka Works, Konohana-ku, Osaka Inventor Nobuyoshi Miwa In Nishisuehirocho, Yokkaichi City0 Inventor Tai 1) Yoshinobu 1-1-3, Nishisuehirocho, Yokkaichi Sumitomo Electric Industries Co., Ltd. No. 1-14 Tokai Electric Cable Co., Ltd. Yokkaichi Business No. 1-14 Tokai Electric Cable Co., Ltd. Yokkaichi Business No. 67-

Claims (1)

[Claims] A linear running part of a toothed belt hung on a toothed pulley driven by a pulse motor is arranged parallel to the direction of wire feeding in front of the wire feeding opening, and the end of the wire is gripped by the linear running part. An electric wire sizing cutting device, characterized in that a cutter for cutting the electric wire is provided immediately before the feeding opening so as to be retractable outside the feeding path of the electric wire.